But he appears to have improperly included footage of a military cemetery in the plethora of images that included Barack Obama, Hillary Clinton, a kneeling Colin Kaepernick, presidential inauguration protesters, Nancy Pelosi, Chuck Schumer and shots of Rokita reading to his sons, shooting a gun, holding a beer while shaking a mechanic's hand and walking through a cornfield.

The problem with showing rows of headstones as an announcer accuses "liberal elites" of disrespecting "the sacrifices of our soldiers" is that the U.S. Department of Veterans Affairs does not allow campaign ads to be filmed in national cemeteries.

"To maintain the sanctity and decorum of VA National Cemeteries as national shrines, our filming policy states that filming may not be used for the expression of partisan or political viewpoints," said VA spokesman James Hutton.

Rokita campaign spokesman Nathan Brand said the ad "does not violate any rules" because the campaign purchased stock footage, rather than shooting the images themselves.

But Brand said Rokita would "happily swap out the footage" if requested to by the VA "because Todd Rokita has the utmost respect for our veterans."

Rokita is one of three Republicans vying for the nomination to challenge Sen. Joe Donnelly, D-Ind.

One of the other Republicans, former state Rep. Mike Braun, recently drew criticism for his fourth campaign ad which used the deaths of an Uber driver and Indianapolis Colts linebacker Edwin Jackson to call for tougher immigration policies. The drunken-driving suspect arrested in the fatal crash is a Guatemalan citizen who was living in the U.S. illegally.

Deborah Monroe, wife of Uber driver Jeffrey Monroe, asked Braun to remove her husband's name and photo from the ad.

Rokita's 30-second ad, which began airing Wednesday, promotes him as a "pro-life, pro-gun, and pro-Trump" candidate who will "fight the politically correct politicians."

"It is time to build the wall, make English our official language, and put America first," Rokita says in the ad.

Rokita is not the first candidate to use national cemetery footage in a campaign ad.

A Senate candidate in Wisconsin changed an ad last year after being asked about footage that appeared to show a veterans cemetery.